Table 3

Comparison of clinical characteristics between the success and failure groups
LBD alone (n= 62) EST plus LBD (n= 69)
Success group (n= 50)a Failure group (n= 12)b P value Success group (n= 51)a Failure group (n= 18)b P value
Bile duct stones
 Size (mm) 14.6 ± 2.1 20.2 ± 3.5 <0.001 15.5 ± 2.9 19.4 ± 5.9 <0.001
 Number 2.2 ± 1.7 2.9 ± 1.2 0.166 2.8 ± 1.8 3.0 ± 1.9 0.609
Balloon/stone diameter ratio 1.01 ± 0.10 0.82 ± 0.08 <0.001 1.15 ± 0.19 0.90 ± 0.18 <0.001

LBD: Large-balloon dilation; EST: Endoscopic sphincterotomy.

a Complete stone clearance without mechanical lithotripsy.

b Application of mechanical lithotripsy or failure to extract stone even after LBD.

Continuous variables are expressed as mean ± standard deviation.

Hwang et al.

Hwang et al. BMC Gastroenterology 2013 13:15   doi:10.1186/1471-230X-13-15

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